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답안 #331791

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
331791 2020-11-30T06:55:11 Z daniel920712 Snake Escaping (JOI18_snake_escaping) C++14
75 / 100
 2000 ms 23024 KB 
#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <vector>
#include <string.h>
#include <map>
#include <utility>
#include <algorithm>
#include <stack>
using namespace std;
char all[1148576];
char tt[25];
int con1[5][1100005];
int con2[5][1100005];
int ans=0;
int N;
void F(int x,int y,int z)
{
    if(x==N)
    {
        if(z%2==0) ans+=con1[N%2][y];
        else ans-=con1[N%2][y];
        return;
    }
    if(tt[x]=='1')
    {
        F(x+1,y+(1<<(N-x-1)),z);
        F(x+1,y,z+1);
    }
    else if(tt[x]=='0') F(x+1,y,z);
    else F(x+1,y+(1<<(N-x-1)),z);

}
void F2(int x,int y)
{
    if(x==N)
    {
        ans+=(all[y]-'0');
        return;
    }
    if(tt[x]=='?')
    {
        F2(x+1,y);
        F2(x+1,y+(1<<(N-x-1)));
    }
    else F2(x+1,y+(1<<(N-x-1))*(tt[x]-'0'));
}
void F3(int x,int y,int z)
{
    if(x==N)
    {
        if(z%2==0) ans+=con2[N%2][y];
        else ans-=con2[N%2][y];
        return;
    }
    if(tt[x]=='0')
    {
        F3(x+1,y+(1<<(N-x-1)),z+1);
        F3(x+1,y,z);
    }
    else if(tt[x]=='1') F3(x+1,y+(1<<(N-x-1)),z);
    else F3(x+1,y,z);

}
int main()
{
    int M,i,j,ok,a,b,c;
    scanf("%d %d",&N,&M);
    scanf("%s",all);
    for(i=0;i<(1<<N);i++) con1[0][i]=all[i]-'0';
    for(i=0;i<(1<<N);i++) con2[0][i]=all[i]-'0';
    for(i=0;i<N;i++)
    {
        for(j=0;j<(1<<N);j++)
        {
            con1[1-i%2][j]=con1[i%2][j];
            if(j&(1<<i)) con1[1-i%2][j]+=con1[i%2][j-(1<<i)];
        }
    }

    for(i=0;i<N;i++)
    {
        for(j=0;j<(1<<N);j++)
        {
            con2[1-i%2][j]=con2[i%2][j];
            if((j&(1<<i))==0) con2[1-i%2][j]+=con2[i%2][j+(1<<i)];
        }
    }

    while(M--)
    {
        scanf("%s",tt);
        ans=0;
        a=0;
        b=0;
        c=0;
        for(i=0;i<N;i++)
        {
            if(tt[i]=='?') a++;
            else if(tt[i]=='1') b++;
            else c++;
        }
        if(b<=a&&b<=c) F(0,0,0);
        else if(a<=b&&a<=c) F2(0,0);
        else if(c<=b&&c<=a) F3(0,0,0);
        printf("%d\n",ans);

    }

	return 0;
}

Compilation message

snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:67:15: warning: unused variable 'ok' [-Wunused-variable]
   67 |     int M,i,j,ok,a,b,c;
      |               ^~
snake_escaping.cpp:68:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   68 |     scanf("%d %d",&N,&M);
      |     ~~~~~^~~~~~~~~~~~~~~
snake_escaping.cpp:69:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   69 |     scanf("%s",all);
      |     ~~~~~^~~~~~~~~~
snake_escaping.cpp:92:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   92 |         scanf("%s",tt);
      |         ~~~~~^~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 315 ms 4408 KB Output is correct
12 Correct 335 ms 4144 KB Output is correct
13 Correct 382 ms 3308 KB Output is correct
14 Correct 549 ms 3436 KB Output is correct
15 Correct 405 ms 4392 KB Output is correct
16 Correct 492 ms 3564 KB Output is correct
17 Correct 464 ms 3692 KB Output is correct
18 Correct 256 ms 5348 KB Output is correct
19 Correct 283 ms 2412 KB Output is correct
20 Correct 347 ms 4076 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 315 ms 4408 KB Output is correct
12 Correct 335 ms 4144 KB Output is correct
13 Correct 382 ms 3308 KB Output is correct
14 Correct 549 ms 3436 KB Output is correct
15 Correct 405 ms 4392 KB Output is correct
16 Correct 492 ms 3564 KB Output is correct
17 Correct 464 ms 3692 KB Output is correct
18 Correct 256 ms 5348 KB Output is correct
19 Correct 283 ms 2412 KB Output is correct
20 Correct 347 ms 4076 KB Output is correct
21 Correct 376 ms 4616 KB Output is correct
22 Correct 397 ms 4716 KB Output is correct
23 Correct 535 ms 3692 KB Output is correct
24 Correct 814 ms 3564 KB Output is correct
25 Correct 489 ms 5484 KB Output is correct
26 Correct 664 ms 4076 KB Output is correct
27 Correct 623 ms 3948 KB Output is correct
28 Correct 278 ms 6636 KB Output is correct
29 Correct 314 ms 2564 KB Output is correct
30 Correct 415 ms 4716 KB Output is correct
31 Correct 616 ms 4588 KB Output is correct
32 Correct 836 ms 4524 KB Output is correct
33 Correct 440 ms 3436 KB Output is correct
34 Correct 714 ms 3724 KB Output is correct
35 Correct 629 ms 4076 KB Output is correct
36 Correct 279 ms 2540 KB Output is correct
37 Correct 377 ms 4504 KB Output is correct
38 Correct 331 ms 2540 KB Output is correct
39 Correct 541 ms 3692 KB Output is correct
40 Correct 636 ms 3564 KB Output is correct

Subtask #4
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 95 ms 18284 KB Output is correct
12 Correct 97 ms 18096 KB Output is correct
13 Correct 126 ms 18028 KB Output is correct
14 Correct 192 ms 18028 KB Output is correct
15 Correct 111 ms 18156 KB Output is correct
16 Correct 182 ms 18028 KB Output is correct
17 Correct 168 ms 18028 KB Output is correct
18 Correct 82 ms 18156 KB Output is correct
19 Correct 88 ms 17844 KB Output is correct
20 Correct 98 ms 18028 KB Output is correct
21 Correct 140 ms 18156 KB Output is correct
22 Correct 198 ms 18028 KB Output is correct
23 Correct 105 ms 17900 KB Output is correct
24 Correct 181 ms 18028 KB Output is correct
25 Correct 162 ms 18156 KB Output is correct
26 Correct 83 ms 17828 KB Output is correct
27 Correct 94 ms 18028 KB Output is correct
28 Correct 91 ms 17900 KB Output is correct
29 Correct 126 ms 18028 KB Output is correct
30 Correct 151 ms 18028 KB Output is correct
31 Correct 97 ms 17900 KB Output is correct
32 Correct 188 ms 17968 KB Output is correct
33 Correct 170 ms 17984 KB Output is correct
34 Correct 81 ms 17900 KB Output is correct
35 Correct 143 ms 18028 KB Output is correct
36 Correct 141 ms 18028 KB Output is correct
37 Correct 144 ms 18156 KB Output is correct
38 Correct 140 ms 18028 KB Output is correct
39 Correct 136 ms 18028 KB Output is correct
40 Correct 148 ms 18028 KB Output is correct

Subtask #5
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 315 ms 4408 KB Output is correct
12 Correct 335 ms 4144 KB Output is correct
13 Correct 382 ms 3308 KB Output is correct
14 Correct 549 ms 3436 KB Output is correct
15 Correct 405 ms 4392 KB Output is correct
16 Correct 492 ms 3564 KB Output is correct
17 Correct 464 ms 3692 KB Output is correct
18 Correct 256 ms 5348 KB Output is correct
19 Correct 283 ms 2412 KB Output is correct
20 Correct 347 ms 4076 KB Output is correct
21 Correct 376 ms 4616 KB Output is correct
22 Correct 397 ms 4716 KB Output is correct
23 Correct 535 ms 3692 KB Output is correct
24 Correct 814 ms 3564 KB Output is correct
25 Correct 489 ms 5484 KB Output is correct
26 Correct 664 ms 4076 KB Output is correct
27 Correct 623 ms 3948 KB Output is correct
28 Correct 278 ms 6636 KB Output is correct
29 Correct 314 ms 2564 KB Output is correct
30 Correct 415 ms 4716 KB Output is correct
31 Correct 616 ms 4588 KB Output is correct
32 Correct 836 ms 4524 KB Output is correct
33 Correct 440 ms 3436 KB Output is correct
34 Correct 714 ms 3724 KB Output is correct
35 Correct 629 ms 4076 KB Output is correct
36 Correct 279 ms 2540 KB Output is correct
37 Correct 377 ms 4504 KB Output is correct
38 Correct 331 ms 2540 KB Output is correct
39 Correct 541 ms 3692 KB Output is correct
40 Correct 636 ms 3564 KB Output is correct
41 Correct 95 ms 18284 KB Output is correct
42 Correct 97 ms 18096 KB Output is correct
43 Correct 126 ms 18028 KB Output is correct
44 Correct 192 ms 18028 KB Output is correct
45 Correct 111 ms 18156 KB Output is correct
46 Correct 182 ms 18028 KB Output is correct
47 Correct 168 ms 18028 KB Output is correct
48 Correct 82 ms 18156 KB Output is correct
49 Correct 88 ms 17844 KB Output is correct
50 Correct 98 ms 18028 KB Output is correct
51 Correct 140 ms 18156 KB Output is correct
52 Correct 198 ms 18028 KB Output is correct
53 Correct 105 ms 17900 KB Output is correct
54 Correct 181 ms 18028 KB Output is correct
55 Correct 162 ms 18156 KB Output is correct
56 Correct 83 ms 17828 KB Output is correct
57 Correct 94 ms 18028 KB Output is correct
58 Correct 91 ms 17900 KB Output is correct
59 Correct 126 ms 18028 KB Output is correct
60 Correct 151 ms 18028 KB Output is correct
61 Correct 97 ms 17900 KB Output is correct
62 Correct 188 ms 17968 KB Output is correct
63 Correct 170 ms 17984 KB Output is correct
64 Correct 81 ms 17900 KB Output is correct
65 Correct 143 ms 18028 KB Output is correct
66 Correct 141 ms 18028 KB Output is correct
67 Correct 144 ms 18156 KB Output is correct
68 Correct 140 ms 18028 KB Output is correct
69 Correct 136 ms 18028 KB Output is correct
70 Correct 148 ms 18028 KB Output is correct
71 Correct 670 ms 22968 KB Output is correct
72 Correct 676 ms 23024 KB Output is correct
73 Correct 1345 ms 21484 KB Output is correct
74 Execution timed out 2051 ms 20856 KB Time limit exceeded
75 Halted 0 ms 0 KB -